diff options
| author |   Avi Kivity <avi@qumranet.com> | 2007-07-09 17:11:49 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-07-16 12:05:50 +0300 |
| commit | a52b1752c077cb919b71167c54968a0b91673281 (patch) | |
| tree | 0305330faac81f946d7722ff6103a08385d19075 /include/linux/smp.h | |
| parent | i386: Allow smp_call_function_single() to current cpu (diff) | |
| download | linux-dev-a52b1752c077cb919b71167c54968a0b91673281.tar.xz linux-dev-a52b1752c077cb919b71167c54968a0b91673281.zip | |
SMP: Allow smp_call_function_single() to current cpu
This removes the requirement for callers to get_cpu() to check in simple
cases. This patch is for !CONFIG_SMP.
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/linux/smp.h')
| -rw-r--r-- | include/linux/smp.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h index 96ac21f8dd73..8039daced688 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -7,6 +7,7 @@ */ #include <linux/errno.h> +#include <asm/system.h> extern void cpu_idle(void); @@ -102,7 +103,11 @@ static inline void smp_send_reschedule(int cpu) { } static inline int smp_call_function_single(int cpuid, void (*func) (void *info), void *info, int retry, int wait) { - return -EBUSY; + WARN_ON(cpuid != 0); + local_irq_disable(); + func(info); + local_irq_enable(); + return 0; } #endif /* !SMP */ |